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Title: Ultra-Wideband
Page Link: Ultra-Wideband -
Posted By: computer science crazy
Created at: Monday 22nd of September 2008 12:50:13 PM
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Definition
UWB is a wireless technology that transmits binary data-the 0s and 1s that are the digital building blocks of modern information systems. It uses low-energy and extremely short duration (in the order of pico seconds) impulses or bursts of RF (radio frequency) energy over a wide spectrum of frequencies, to transmit data over short to medium distances, say about 15-100 m. It doesn't use carrier wave to transmit data.
UWB is fundamentally different from existing radio frequency technology. For radios today, picture a guy watering hi ....etc
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Title: Ultra-Wideband
Page Link: Ultra-Wideband -
Posted By: computer science crazy
Created at: Thursday 17th of September 2009 03:58:18 AM
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Ultra-Wideband
Definition
UWB is a wireless technology that transmits binary data-the 0s and 1s that are the digital building blocks of modern information systems. It uses low-energy and extremely short duration (in the order of pico seconds) impulses or bursts of RF (radio frequency) energy over a wide spectrum of frequencies, to transmit data over short to medium distances, say about 15-100 m. It doesn't use carrier wave to transmit data.
UWB is fundamentally different from existing radio frequency technology. For radios today, pic ....etc
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Title: wideband ofdm full report
Page Link: wideband ofdm full report -
Posted By: computer science technology
Created at: Friday 22nd of January 2010 09:02:26 PM
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ABSTRACT
Orthogonal frequency Division Multiplexing (OFDM) is
multicarrier transmission technique. OFDM is a communication technique
that divides the communication channel into a number of equally spaced
frequency bands. A sub carriers a portion of the users information in
each band. Each sub carriers is orthogonal (Independent of each other)
with every other sub carrier. OFDM efficiently squeezes multiple
modulated carriers tightly together reducing the required bandwidth.
OFDM was invested in 1960â„ ....etc
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Title: Wideband Sigma Delta PLL Modulator
Page Link: Wideband Sigma Delta PLL Modulator -
Posted By: Computer Science Clay
Created at: Sunday 01st of March 2009 04:38:33 PM
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Wideband Sigma Delta PLL Modulator
The proliferation of wireless products over past few years has been rapidly increasing. New wireless standards such as GPRS and HSCSD have brought new challenges to wireless transceiver design. One pivotal component of transceiver is frequency synthesizer.
Two major requirements in mobile applications are efficient utilization of frequency spectrum by narrowing the channel spacing and fast switching for high data rates. This can be achieved by using fractional- ....etc
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Title: Wideband Sigma Delta PLL Modulator
Page Link: Wideband Sigma Delta PLL Modulator -
Posted By: computer science crazy
Created at: Wednesday 08th of April 2009 02:26:25 AM
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Introduction
The proliferation of wireless products over past few years has been rapidly increasing. New wireless standards such as GPRS and HSCSD have brought new challenges to wireless transceiver design. One pivotal component of transceiver is frequency synthesizer.
Two major requirements in mobile applications are efficient utilization of frequency spectrum by narrowing the channel spacing and fast switching for high data rates. This can be achieved by using fractional- N PLL architecture. They are capable of synthesizing frequencies ....etc
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Title: W-CDMA Wideband Code-Division Multiple Access
Page Link: W-CDMA Wideband Code-Division Multiple Access -
Posted By: computer science crazy
Created at: Friday 23rd of October 2009 06:47:24 PM
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W-CDMA (Wideband Code-Division Multiple Access), an ITU standard derived from Code Division Multiple Access, is officially known as IMT-2000 direct spread. W-CDMA is a third-generation mobile wireless technology that promises much higher data speeds to mobile and portable wireless devices than commonly offered in today's market. The present seminar discusses the applicability of WCDMA system with respect to 3G mobile system. The reason for the popularity of spread spectrum technique is addressed and the evolu ....etc
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Title: WIDEBAND OFDM
Page Link: WIDEBAND OFDM -
Posted By: computer science crazy
Created at: Monday 22nd of September 2008 02:13:47 AM
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Orthogonal frequency Division Multiplexing (OFDM) is multicarrier transmission technique. OFDM is a communication technique that divides the communication channel into a number of equally spaced frequency bands. A sub carriers a portion of the users information in each band. Each sub carriers is orthogonal (Independent of each other) with every other sub carrier. OFDM efficiently squeezes multiple modulated carriers tightly together reducing the required bandwidth.OFDM was invested in 1960?s, only recently it has recognized as an excellent meth ....etc
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Title: Wideband Sigma Delta PLL Modulator Download Full Report And Abstract
Page Link: Wideband Sigma Delta PLL Modulator Download Full Report And Abstract -
Posted By: computer science crazy
Created at: Sunday 22nd of February 2009 04:37:30 AM
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INTRODUCTION
The proliferation of wireless products over past few years has been rapidly increasing. New wireless standards such as GPRS and HSCSD have brought new challenges to wireless transceiver design. One pivotal component of transceiver is frequency synthesizer.
Two major requirements in mobile applications are efficient utilization of frequency spectrum by narrowing the channel spacing and fast switching for high data rates. This can be achieved by using fractional- N PLL architecture. They are capable of synthesizing frequencies ....etc
[:=Read Full Message Here=:]
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Title: Ultra-Wideband
Page Link: Ultra-Wideband -
Posted By: computer science crazy
Created at: Sunday 21st of September 2008 01:56:16 PM
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Definition
UWB is a wireless technology that transmits binary data-the 0s and 1s that are the digital building blocks of modern information systems. It uses low-energy and extremely short duration (in the order of pico seconds) impulses or bursts of RF (radio frequency) energy over a wide spectrum of frequencies, to transmit data over short to medium distances, say about 15-100 m. It doesn't use carrier wave to transmit data.
UWB is fundamentally different from existing radio frequency technology. For radios today, picture a guy watering hi ....etc
[:=Read Full Message Here=:]
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Title: Wideband Sigma Delta PLL Modulator
Page Link: Wideband Sigma Delta PLL Modulator -
Posted By: computer science crazy
Created at: Sunday 21st of September 2008 12:57:54 PM
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Introduction
The proliferation of wireless products over past few years has been rapidly increasing. New wireless standards such as GPRS and HSCSD have brought new challenges to wireless transceiver design. One pivotal component of transceiver is frequency synthesizer.
Two major requirements in mobile applications are efficient utilization of frequency spectrum by narrowing the channel spacing and fast switching for high data rates. This can be achieved by using fractional- N PLL architecture. They are capable of synthesizing frequencies ....etc
[:=Read Full Message Here=:]
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